1.NEW VERSION: Specially designed tool kit for bicycle headset press-fit, bottom bracket installation, and BB bearing work. Comes organized in a custom carrying case for easy storage and transport. Enables you to complete tasks efficiently and professionally with a compact, organized setup. 2.BIKE MULTIFUNCTION TOOL: Suitable for removal and installation of press-fit type bottom brackets such as BB86, BB30, BB91, BB92, and others. Capable of disassembling most hollow-threaded bottom bracket bearings. In addition, the tool kit can be used for bike headsets press-fit applications. 3.DURABLE MATERIAL: Made of aluminum alloy and stainless steel with an upgraded CNC process. The construction delivers durability, corrosion resistance, and longer service life. 4.EASY TO USE: Designed to remove and replace bearings on a bike without causing damage. Supports bearings such as 6805 (25X37X7) and 6806 (30X42X7), and works with press-in type BB R92/T86 R30. Includes compatibility for BB30 to BB24 converter. Use scenarios: - Replacing a worn BB86 press-fit bottom bracket on a road bike: remove the old bearings, clean the interface, and install a new BB86 unit with confidence using the kit. - Servicing a mountain bike with BB92 or BB30 style bearings: perform bearing removal and press-fit installation, with the tool aiding smooth, accurate alignment. - Overhauling a frame with a press-fit headset: utilize the press-fit capability for headset installation or adjustment as part of a full service.